Build depends on the google annotations lib, otherwise it fails during compile
Merge pull request #2 from bryancallahan/master

Fix for "cannot find symbol: class TargetApi" compilation error (build depends on the google annotations lib)
Update Gradle plugin to 0.5.2.
Add travis configuration.
Also install android-16 on Travis.

We need it for Maven.
Update android-maven-plugin to 3.6.0.
Add debugging info for Travis.
Try again.
Update Android SDK and use build-tools 18.0.0.
Update readme.
Improve Gradle output on Travis.
new version.